Antibackfiring attachment for carbureters.



J. VON WLADKOWSKY. ANTIBAGKPIRING ATTACHMENT FOR GARBURETERS.APPLICATION FILED JUNEQ, 191s. RENEWED JAN. 22, 1915.

1,13%553, Patented Mar. 2, 1915.

F JV QT H A} WITNESSES INVENTOR a. mm Julius Mam v By V C 0 ATTORNEYScanton.

JULIUS VON W'LADKOWSKY. OF NEW YORK, N. Y.

ANTIBACKFIRING ATTACHMENT FOR CARBURETERS.

Specification of Letters'Patent.

Patented Mar. 2, 1915.

Application filed June 9, 1913, Serial No. 772,627. Renewed January 22,1915. Serial No.'3,841.

To all whom may concern:

Be it known that I, JULIUS VON WLADKOW- SKY, a subject of the Emperor ofAustria- Hungary, and a resident of the city of New York, borough ofManhattan, in the county and State of New York, have invented a new andImproved Antibackfiring Attachment for Carbureters, of which thefollowing is a full, clear, and exact description.

This invention relates to a device designed for use in connection withinternal combustion engines for preventing backfiring thereof throughthe carbureter.

The invention has for its general objects to improve the construction ofdevices of this character so as to be more reliable and efficient inuse, comparatively inexpensive to manufacture and so designed that itcan be readily applied as an attachment to carbureters already in use.

Another object of the invention is to provide an anti-backfiring devicewhich by its novel construction has the additional functions of causinga better mixture of fuel and air and reducing fuel consumption.

A further object of the invention is the provision of a screen which isplaced in the mixing conduit and has on the engine side thereof abaffling or deflecting device whereby the force of the gas at the timeof backfiring is overcome to such an extent that the flame cannot passthrough the screen, such baffling device being in the formof vanes whichdeflect the gas and give the same a rotary movement around the screen.

Another feature of the invention is the use of a bafliing device as ameans for centering the attachment in the mixture conduit of the engine,such baflling device being spaced from the body of the screen by acentral hollow stem on the latter, which stem holds porous material thatis adapted to become saturated with gasolene so that vaporizing of thefuel is greatly facilitated and starting of the engine made easier.

With these objects in view, and others as will appear as the descriptionproceeds, the invention comprises various novel features of constructionand arrangement of parts which will be more fully described hereinafterand set forth with particularity in the claims appended hereto.

In the accompanying drawin which illustrate one embodiment of theinvention,

and wherein similar reference characters are employed to designatecorresponding parts throughout the several views, Figure 1 is a sideview of a carbureter and engine manifold with portions broken away toshow the anti-backfiring and fuel saving attachment in position; Fig. 2is a plan view of theattachment; and Fig. 3 is an enlarged sectionalview thereof.

Referring to the drawing, A designates an ordinary carbureter which isconnected with the manifold B of a gas engine, there being at the pointof connection the attachment C which forms the subject matter of thepresent invention. This attachment comprises an approximatelysemispherical screen 1 of copper or other Wire netting, there being areinforcing ring 2 around the periphery thereof, said ring being clampedbetween the flanges 3 and 4 of the carbureter A and manifold B, and ifdesired a packing ring 5 may be employed to eflectively seal the joint.The central portion of the screen is shaped into a hollow stem 6 whichforms a support for the baflle device 7 that is spaced from the body ofthe screen by the stem- 6. This bafliing device comprises a plurality ofvanes 8 which are given a pitch similar to the vanes or blades of a fanor propeller, and these vanes are of such length that the diameter ofthe baffling device is practically the same as the diameter of themanifold B in which the bafliing device 7 is positioned, andconsequently the bafiiing device serves to centralize the attachmentwhen it is being assembled. Between the manifold and carbureter thehollow stem 6 is filled with cotton 9 or equivalent material and held inplace by a piece of gauze 10 which is soldered or otherwise securedwithin the chamber side of the screen. The hollow side of the screen 1is presented to the carbureter so as to provide clearance for thethrottle 11 in those carbureters where butterfly throttle valves areused, but it is to be understood that the screen 1 is made roundedprimarily for the purpose of obstructing the passage of the flamethrough the screen. In case of a backfire the force of the gas is brokenby means of the bafiling no force to; cause the flame to pass throughthe mesh of the screen. It is well known that a flame of low pressurewill not pass through a wire netting, and as the bafiing device 7greatly reduces the pressure of the backfiring gases the flame does notpass into the carbureter. 'llhe screen 1 and porous materials 9 act toarrest the particles of gasolene that would otherwise be sucked into themanifold and eventually into the engine during the suction strokes ofthe pistons, and furthermore a better vaporizing action is obtained sothat the consumption of fuel isl-reduced and engine troubles alsominimiz'ed.

From the foregoing description taken in connection withthe'acconipanying drawings, the advantages of the construction andmethod of operation and of the device shown will be readily-understoodby those skilled in the art to which the invention appertains, and whileI have described the principle of operation, together with the devicewhich I now consider to be the best embodiment thereof, I desire to haveit understood that the deviceshown is merely illustrative, and that suchchanges may be made when desired as are within the scope of the appendedclaims.

Having thus described my invention, ll

memes claim as new and desire to secure by Letters Patent:

1. A. carbureter attachment of the class described comprising a gauzescreen, a vaporizer thereon including absorbent material, and a bafiingdevice also mounted on the screen. p

2. An attachment of the class'described comprising a means connectingthe device with the screen and forming a vaporizer.

3. A carbureter attachment of the class described comprising a screen, ahollow central stem thereon, a baiiling device carried by the stem,

4. A carbureter attachment of the class described comprising a screenhaving a central portion formed into a hollow stem, porous material inthe stem, means attached to the screen for holding the said material inthe stem, and a bafliing device secured to the extremity of the stem.

In testimony whereof l have signed my name to this specification in thepresence of two subscribing witnesses.

: 'Jnit ns VON wmnnowsnr.

Witnesses A. H. DAVIS,

PHILIP D. ROLLHAUS.

screen, a bafiing device, and

and porous material in the stem.

